WordPress Booking Calendar Contact Form 1.0.23 contains an unauthenticated blind SQL injection vulnerability in the shortcode function that fails to sanitize the calendar parameter before using it in database queries. Attackers can inject SQL commands through the calendar shortcode parameter to execute arbitrary SQL queries and extract sensitive database information.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
dwbooster Booking Calendar Contact Form affected
Version Status Constraints
0 affected ≤ 1.0.23

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
http://wordpress.dwbooster.com/ cve-icon cve-icon
https://www.exploit-db.com/exploits/39423 cve-icon cve-icon
https://www.vulncheck.com/advisories/wordpress-booking-calendar-contact-form-sql-injection-2 cve-icon cve-icon
History

Mon, 15 Jun 2026 14:00:00 +0000

Type Values Removed Values Added
Description WordPress Booking Calendar Contact Form 1.0.23 contains an unauthenticated blind SQL injection vulnerability in the shortcode function that fails to sanitize the calendar parameter before using it in database queries. Attackers can inject SQL commands through the calendar shortcode parameter to execute arbitrary SQL queries and extract sensitive database information.
Title WordPress Booking Calendar Contact Form 1.0.23 SQL Injection
Weaknesses CWE-89
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'}

cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-06-15T12:00:39.584Z

Reserved: 2026-06-14T18:27:45.187Z

Link: CVE-2016-20069

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-06-15T14:16:29.960

Modified: 2026-06-15T14:16:29.960

Link: CVE-2016-20069

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses